Inventory

6 Months Ended

12 Months Ended

Jun. 30, 2022

Dec. 31, 2021

Inventory Disclosure [Abstract]

Inventory

(3) Inventory

Inventory consisted of the following (in thousands):

	June 30, 2022		December 31, 2021
Raw materials	$	2,700	$	2,292
Work in progress		2,586		578
Finished goods		235		372
Total inventory	$	5,521	$	3,242

(3) Inventory

Inventory consists of the following (in thousands):

	As of December 31,
	2021		2020
Raw materials	$	2,292	$	2,993
Work in progress		578		647
Finished goods		372		1,177
Total inventory	$	3,242	$	4,817